{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "qRT - PCR detected similar patterns of changes in AQP2 mRNA in the medulla but not in the cortex ."}
{"Chemical": [], "Disease": []}